Glycoluril, 98%+

About Glycoluril, 98%+

Glycoluril is an imidazole derivative carrying the CAS registry number 496-46-8 with a typical assay of ≥98%. The compound has the formula C4H6N4O2, corresponding to a molecular weight of 142.12 g/mol. The IUPAC name is 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione. Alternative names: Acetylene carbamide and Acetylenediurea.

The material typically appears as a white solid. Literature values give a melting point of above 300 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 5 g, 25 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Glycoluril, 98%+
Catalogue No.	VQ-012195
CAS Number	496-46-8
IUPAC name	1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione
Molecular formula	C₄H₆N₄O₂
Molecular weight	142.12 g/mol
Exact mass	142.0491
Purity / assay	≥98%
HSN code	29429090
InChIKey	VPVSTMAPERLKKM-UHFFFAOYSA-N
SMILES	C12C(NC(=O)N1)NC(=O)N2
PubChem CID	62347

Physical properties
Physical form	Solid
Appearance	White solid
Melting point	>300 °C
LogP (XLogP3)	-1.6
H-bond donors / acceptors	4 / 2
TPSA	82.3 Å²
Synonyms	Acetylene carbamide, Acetylenediurea, Tetrahydroimidazo[4,5-d]imidazole-2,5-dione, tetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione, Acetylenediureine, Imidazo[4,5-d]imidazole-2,5(1H,3H)-dione, tetrahydro-, Imidazo(4,5-d)imidazole-2,5(1H,3H)-dione, tetrahydro-, Tetrahydroimidazo(4,5-d)imidazole-2,5(1H,3H)-dione, 1,3,3a,4,6,6a-hexahydroimidazo(4,5-d)imidazole-2,5-dione, (3as,6as)-octahydroimidazo(4,5-d)imidazolidine-2,5-dione, Glyoxaldiureine, Glyoxaldiurene

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Glycoluril, 98%+?

The CAS Registry Number of Glycoluril, 98%+ is 496-46-8. It is also known as Acetylene carbamide, Acetylenediurea, Tetrahydroimidazo[4,5-d]imidazole-2,5-dione.

What is the molecular formula and molecular weight of Glycoluril, 98%+?

Glycoluril, 98%+ has the molecular formula C4H6N4O2 and a molecular weight of 142.12 g/mol. Its IUPAC name is 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione.

Which grade and pack sizes of Glycoluril, 98%+ can I order?

We supply Glycoluril, 98%+ in (≥98%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Glycoluril, 98%+?

Yes. Every lot of Glycoluril, 98%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Glycoluril, 98%+ be shipped internationally?

Yes. Glycoluril, 98%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.